Origin: Dorsal surface of axillary border of the Scapula
Insertion: Lowest facet of greater tuberosity of the Humerus and the Glenohumeral Joint
Function: draws the Humeral head into the glenoid fossa, Adducts and external rotates the shoulder along with other Muscles which produce shoulder Adduction
and Muscles which produce shoulder External (lateral) Rotation
Nerve: Axillary Nerve
Artery: Circumflex scapular artery